Test Ball Plug, Air Connection Gender Male, Air Connection Size 1/4 in, Air Connection Type Tire Valve, Body Surface Style Textured, Bypass Connection Size 3 in, Bypass Connection Type NPT, Bypass Thread Gender Female, Deflated Diameter 6.75 in, Deflated Length 10 in, For Maximum Pipe Inside Diameter 8.25 in, For Maximum Pipe Size 8 in, For Minimum Pipe Inside Diameter 7 in, Head Tether Connection Eyebolt, Inflated Length Not Applicable, Maximum Back Pressure (Air) 13 psi